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