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