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