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