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