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