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