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