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