I don't know of anyone that uses the Theory of Evolution as evidence against the existence of God.
I don't know of anyone who does this, either--but this is a claim of anti-evolution theists. They frequently attempt to drag "the big bang" and cosmic origins, as well as the alleged implausibility of life forms arising from "dead" matter as arguments against evolution (which they refer to as "abiogenesis"). Evolution, of course, only describes a process which begins after the cosmos exists, and after life has arisen. Pointing this out to the theists, is, however, a waste of time. Describing scientific inquiry in general, and the study of evolutionary processes in particular, as atheistic, is just about the strongest weapon the fundies have to keep their "flocks" in line.
So, no, of course reasonable people don't claim that the fact
of evolution disproves (or proves, for that matter) the existence of god. It is a measure of the success of the hysteria campaign of the religious right, however, that so many people believe it.