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