Taoism does not have an omnipotent god unless you consider the cosmos to be a god. I don't.
That's not what you said.
You said you were an atheist. That means you don't believe in any gods or divinities, and as a matter of colloquial speech it also generally is meant to insinuate you are not religious.
Daoism is both a religion, and it has divinities as practiced by the people who invented it.

