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