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