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