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)(18,22)(19,23) involution — undirected(10,13)(14,15)(17,18)(19,20)(21,22)(23,24) involution — undirected(1,2,4,3)(11,16)(14,15)(18,22)(19,23)(5,6)(7,8)(9,11)(10,14)(12,16)(13,15)(17,19,21,23)(18,20,22,24)(1,3,4,2)(9,10)(11,14)(12,13)(15,16)(17,20)(18,23)(19,22)(21,24)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.