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