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