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