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