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