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)(17,18,22,24,20,25,21,26)(19,27,30,31,29,23,28,32)(2,6)(3,11)(4,13)(7,15)(8,9)(10,16)(17,19)(18,23)(20,29)(21,28)(22,30)(24,32)(25,27)(26,31) involution — undirected(18,24)(19,28)(21,22)(25,26)(29,30)(31,32) involution — undirected(1,3,5,11)(2,7,9,16)(4,14,13,12)(6,10,8,15)(18,25)(23,27)(24,26)(31,32)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.