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