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