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