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