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