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