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