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