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