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