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