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