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