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)(11,13)(12,14)(15,16)(17,18)(19,26)(20,21)(22,32)(23,25)(24,29)(27,28)(30,31)(9,10)(11,15)(12,14)(13,16)(17,19,23,30)(18,24,25,27)(20,31,32,26)(21,29,22,28)(2,5)(6,8)(9,11,12,16)(10,13,14,15)(1,3,4,7)(2,6,5,8)(11,16)(13,15)(17,20,23,32)(18,21,25,22)(19,27,30,24)(26,28,31,29)(10,14)(13,15)(17,21,23,22)(18,20,25,32)(19,28,30,29)(24,26,27,31)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.