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