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