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