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