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