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