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