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