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