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