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