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