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