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