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