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