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