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