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