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