I'm making a wolf game involving stats, and I've heard certain things about a wolf's color making it immune to certain diseases, or better at catching prey(camouflage). I want to know if a wolf's color affects its health, strength or speed, social activity, etc.

Nope.
No effect whatsoever..

Nope. A wolf is a wolf, is a wolf. I don't know where u heard that or read it. Not based in fact. However, wolves and coyotes are immune to rabies. Nature takes care of itself.

"or better at catching prey(camouflage)."
Wolves are not conceal type predators like snakes. They actively pursue prey, sometimes for miles. Concealment has no bearing. Wolves are pack oriented. If you are born to a female of the pack, you are a member, regardless of color of fur. I have seen a black, piebald and mixed color wolf pack track down and capture a mule deer.

Most of this I thought was obvious, but I wanted to check just in case.