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