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