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