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