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