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