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