One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,7)(4,5)(6,8)(10,13)(11,15)(17,18,21,23)(19,22,24,20)(25,26,29,27)(28,31,32,30)(2,4)(6,7)(9,10)(11,16)(12,13)(14,15)(17,18)(19,20)(21,23)(22,24)(25,27,29,26)(28,31,32,30)(1,3,5,8)(2,6,4,7)(9,10,12,13)(11,16,15,14)(17,19,21,24)(18,22,23,20)(1,3)(2,6)(4,7)(5,8)(9,10)(11,16)(12,13)(14,15)(17,18)(19,22)(20,24)(21,23)(25,28)(26,30)(27,31)(29,32) involution — undirected(1,4,5,2)(3,6,8,7)(9,11)(10,14)(12,15)(13,16)(17,20,21,22)(18,19,23,24)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.