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