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