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