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)(26,29)(27,32)(1,3,4,7)(2,5,6,8)(9,10,13,14)(11,12,16,15)(17,19,22,27)(18,23,20,29)(21,26,31,28)(24,32,30,25)(2,6)(5,8)(9,11)(10,15)(12,14)(13,16)(17,20,22,18)(19,23,27,29)(21,30,31,24)(25,26,32,28)(10,14)(11,16)(18,20)(19,26)(21,31)(23,25)(27,28)(29,32) involution — undirected(9,12,13,15)(10,11,14,16)(18,20)(19,27)(24,30)(26,28)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.