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