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