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