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