the color camo I don't think matters much.
camo vs. no camo, if you don't move this probably won't matter either, but turkeys don't always come out where you want them to, so having to move/adjust your position, having a camo gun would probably help you get into position better without alerting them.
get yourself a turkey gun, why not? everyone who hunts turkeys needs a dedicate turkey gun IMO. and you can use it for so much else...