You know, if you took out that central pedestal I'm not sure I'd recognize that set because that's all I've ever paid attention to. Once again you've made me look anew at a set that I've been looking at for 38 years.
I find it recognizable from the hexagonal panels with the disc-shaped light fixtures, and from the overhead screens that are distractingly recycled from the Klingon bridge in TMP (and even still seem to have Klingon writing beneath them). I think the hexagonal light panels are recycled from some other production too.