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