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