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