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