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