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