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