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)(11,15)(12,14)(13,16)(17,18,22,26)(19,25,21,24)(20,30,31,29)(23,28,32,27)(2,5)(3,7)(9,11)(10,13)(12,16)(14,15)(17,19,22,21)(18,24,26,25)(20,28,31,27)(23,29,32,30)(11,16)(13,15)(17,20,23,25,22,31,32,24)(18,21,27,30,26,19,28,29)(2,5)(6,8)(10,14)(13,15)(17,21,22,19)(18,25,26,24)(20,27,31,28)(23,30,32,29)(1,3,4,7)(2,6,5,8)(19,21)(20,31)(24,25)(29,30)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.