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