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