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