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