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