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