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