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)(11,14)(12,16)(13,15)(17,18,22,23)(19,21,25,30)(20,24,28,31)(26,29,32,27)(2,6)(7,8)(9,11,13,12)(10,14,15,16)(18,23)(19,21)(24,31)(25,30)(26,29)(27,32)(1,3,5,4)(2,7,6,8)(10,15)(14,16)(17,19,22,25)(18,21,23,30)(20,27,28,29)(24,26,31,32)(9,12,13,11)(10,16,15,14)(17,20,22,28)(18,24,23,31)(19,26,25,32)(21,29,30,27)(1,4,5,3)(2,8,6,7)(17,21)(18,25)(19,23)(20,26)(22,30)(24,29)(27,31)(28,32)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.