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