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