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