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