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