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