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