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