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