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