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