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