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