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