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