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