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