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