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