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