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