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