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