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