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