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