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