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