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