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