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