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