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