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