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