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