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