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