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