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