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)(11,15)(12,17)(13,18)(14,19)(16,22)(20,24)(21,23) involution — undirected(9,11,14,13)(10,15,19,18)(12,20,22,21)(16,24,17,23)(2,5)(6,8)(9,12)(10,16)(11,20)(13,21)(14,22)(15,23)(17,19)(18,24) involution — undirected(9,12)(10,17)(11,21)(13,20)(14,22)(15,23)(16,19)(18,24) involution — undirected(1,3,4,7)(2,6,5,8)(9,13,14,11)(10,18,19,15)(12,20,22,21)(16,23,17,24)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.