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