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