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