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