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