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