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