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