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