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)(19,25,26,32)(20,22)(21,24)(23,27,28,30)(29,31)(1,2)(3,10)(4,7)(5,8)(6,9)(11,15)(12,14)(13,16)(17,19)(18,23)(20,28)(21,30)(22,26)(24,32)(25,29)(27,31) involution — undirected(1,3,5,9)(2,6,8,10)(4,12,13,11)(7,15,16,14)(17,20,22,18)(19,23,26,28)(21,24,31,29)(25,27,32,30)(1,4,5,13)(2,7,8,16)(3,11,9,12)(6,14,10,15)(18,20)(23,28)(24,29)(25,32)(2,8)(6,10)(7,16)(14,15)(19,26)(23,28)(25,32)(27,30) involution — undirectedA 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.