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