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