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