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