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