  We are concerned with finding explicit generators of the Brauer group of
diagonal cubic surfaces in terms of norm residue symbols, which was originally
studied by Manin. We introduce the notion of uniform generators and find that
the Brauer group of some classes of diagonal cubic surfaces have uniform
generators. However, we also prove that the Brauer group of general diagonal
cubic surfaces do not have such ones. This reveals that a result of Manin for
certain diagonal cubic surfaces cannot be generalized in some sense.
