One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,9,12,6)(4,8)(5,7)(10,15,11,14)(13,16)(17,18)(19,27,30,32)(20,25)(21,24)(22,26)(23,28,31,29)(1,3,5,12)(2,6,7,9)(4,10,13,11)(8,14,16,15)(17,19)(18,23)(20,29)(21,28)(22,30)(24,27)(25,32)(26,31)(3,10)(4,13)(6,14)(8,16)(9,15)(11,12)(18,24)(20,21)(23,27)(25,26)(28,29)(31,32) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.