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