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