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