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