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