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