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