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