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