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