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