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)(17,18,22,25)(19,29,30,24)(20,26,31,32)(21,27,23,28)(2,6)(7,8)(17,19,22,30)(18,24,25,29)(20,21,31,23)(26,28,32,27)(1,3,5,4)(2,7,6,8)(10,13)(14,16)(18,25)(19,20)(21,23)(24,26)(29,32)(30,31)(9,11,12,15)(10,14,13,16)(17,20)(18,26)(19,21)(22,31)(23,30)(24,28)(25,32)(27,29)(1,4,5,3)(2,8,6,7)(17,21)(18,27)(20,31)(22,23)(25,28)(26,32)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.