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