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