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