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