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