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