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