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