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