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