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