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