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)(17,18,21,24,20,22,27,28)(19,23,26,30,25,29,31,32)(1,2,6,3)(4,7,5,8)(9,10,13,14)(11,16,12,15)(18,22)(23,29)(24,28)(30,32)(1,3,6,2)(4,7,5,8)(9,11,13,12)(10,15,14,16)(17,18)(19,23)(20,22)(21,28)(24,27)(25,29)(26,32)(30,31)(1,4,6,5)(2,7,3,8)(9,12,13,11)(10,15,14,16)(17,19)(18,23)(20,25)(21,26)(22,29)(24,30)(27,31)(28,32)(1,5,6,4)(2,7,3,8)(19,25)(23,29)(26,31)(30,32)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.