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