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