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