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