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