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