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