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