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