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