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