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