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