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