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