Saxon might not like being picked up, in which case that is something you can work on. First make sure he is being lifted comfortably - we find best with Ollie side on to us, one arm scooping around his chest and one arm under his rump. We lifted him the puppy way (hands under his underarms) and he didn't like that after a while as I think this became uncomfortable as he got bigger. We had to work on this as a two person team - one holding the treats/ occupying the head and one lifting and now Ollie is fine with that.
He may also be guarding the bed and be interpreting your OH's advances to him as an attempt to remove him from his desired place (how does he know OH is about to help him on and not take him away? In fact the end result for Saxon on these occasions is that he is being taken away, so in his mind this might increase his motivation to growl and snap). Personally I would be tempted to say no to allowing him on your bed, does your OH really want to feel uncomfortable approaching him at these times?
Others might disgree but I think excessive attention from your OH when he comes home is probably cementing in Saxon's mind that he is top dog and gets to do what he wants to do. I would say your OH should ignore him for a few minutes, spend time greeting you, then ask Saxon to sit down, give a paw etc before giving attention to him. I know plenty of others have no time for this 'top dog' mentality, all I know is that it works with our dog. We lapse all the time, and forget all our strict ideas about 'nothing in life is free', asking Ollie to do things before giving him what he wants, excessively fussing him because we all love the cuddles, and it is in these times that his behaviour is the hardest to manage, when he starts guarding places and things again. When we ignore him to start off with, ask him to do commands before receiving what he wants/ getting cuddles, when we don't allow him on the furniture he wants to guard and when we walk him strictly on a short lead at our heel before having his long run around that is when his behaviour is much better ....and subsquently when we begin to lapse again
I think if your OH establishes good natured authority over Saxon on all the little things the bigger situations and more stressful confrontations are less likely to arise.