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