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