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