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