One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,9,6,3,10,8)(4,7,14,16,15,11,13,12)(17,18,23,28)(19,29,30,31)(20,25,24,32)(21,27,22,26)(1,3)(2,6)(4,12)(5,8)(7,14)(9,10)(11,13)(15,16)(17,19)(18,24)(20,28)(21,32)(22,25)(23,30)(26,31)(27,29) involution — undirected(17,20)(18,19)(21,31)(22,29)(23,24)(25,26)(27,32)(28,30) involution — undirected(1,4)(2,7)(3,11)(5,14)(6,15)(8,12)(9,16)(10,13)(17,20)(18,25)(19,26)(21,29)(22,31)(23,24)(27,30)(28,32) 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.