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