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