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