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