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