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