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