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