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