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