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