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