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