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