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