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