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