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