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