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