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