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