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