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