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