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