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