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