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