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