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