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