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