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