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