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