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