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