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