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