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