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