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)(11,12)(13,14)(15,16)(17,18)(19,24)(20,22)(21,23)(25,26,30,28)(27,32,29,31)(4,8)(6,7)(9,10)(11,12)(13,14)(15,16)(17,19)(18,23)(20,24)(21,22)(25,26,30,28)(27,31,29,32)(2,3)(6,7)(10,14)(11,15)(17,18,22,20)(19,24,21,23)(25,27,30,29)(26,31,28,32)(1,3,5,2)(4,7,8,6)(9,11,13,15)(10,12,14,16)(17,20,22,18)(19,24,21,23)(25,28,30,26)(27,31,29,32)(1,4,5,8)(2,6,3,7)(9,12)(10,15)(11,14)(13,16)(17,21,22,19)(18,23,20,24)(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.