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