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