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