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