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