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