Yep. There's a general confusion between gender identity and gender expression, that's why you "expect" non-binary to look androgynous. But indeed, a nonbinary can have a cisman-passing or a ciswoman-passing. I am non-binary and I "look like a man" and it causes me to be insulted or mocked when I go out with makeup or wearing a skirt.

But yeah basically all you need to understand is that gender identity does not have to match a gender expression.