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