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