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