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