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