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