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