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