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