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