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