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