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