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