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