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