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