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