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