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