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