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