It's big and that's where the similarities end.
But then again, we don't really know what a Space Jockey would look like - the one we saw was millions, if not billions of years old, fossilised, and also seemingly fused to its chair. it's pretty hard to work out what it would look like.
From what I could see it didn't look that different to us, though, in terms of shape at least.
And please, nobody link the Jockey from the comics, it looks retarded, especially since it has a trunk, even though the thing on the fossilised Jockey's face is a breathing tube, trunks have no bones in them, and would just rot away completely.