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