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