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