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