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