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)(11,15)(12,16)(13,14)(17,18,22,21)(19,20,24,23)(26,29)(30,32)(2,4)(6,8)(10,13)(11,12)(17,19,22,24)(18,23,21,20)(27,31)(30,32)(2,4)(6,8)(9,11,14,12)(10,15,13,16)(17,20)(18,19)(21,24)(22,23)(25,26)(27,30)(28,29)(31,32)(1,3)(2,6)(4,8)(5,7)(9,12,14,11)(10,16,13,15)(17,20)(18,19)(21,24)(22,23)(25,27)(26,30)(28,31)(29,32)(1,4,5,2)(3,6,7,8)(9,13,14,10)(11,15,12,16)(17,21,22,18)(19,23,24,20)(25,26)(27,30)(28,29)(31,32)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.