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