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