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