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