One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,7)(3,8,4,6)(9,10)(11,14)(12,13)(15,16)(17,18,23,29)(19,30,32,25)(20,26,36,45)(21,38,24,27)(22,39,40,28)(31,46,47,41)(33,44,35,42)(34,48,37,43)(1,2)(3,6)(4,8)(5,7)(17,19,23,32)(18,25,29,30)(20,33,36,35)(21,22,24,40)(26,42,45,44)(27,39,38,28)(31,34,47,37)(41,48,46,43)(10,13)(14,16)(17,20,21,34,23,36,24,37)(18,26,38,48,29,45,27,43)(19,31,40,35,32,47,22,33)(25,41,39,44,30,46,28,42)(1,3,5,4)(2,6,7,8)(9,11,12,15)(10,14,13,16)(17,21,23,24)(18,27,29,38)(19,22,32,40)(20,34,36,37)(25,39,30,28)(26,43,45,48)(31,33,47,35)(41,44,46,42)(1,4,5,3)(2,6,7,8)(17,22,21,19,23,40,24,32)(18,28,38,25,29,39,27,30)(20,35,34,47,36,33,37,31)(26,44,48,46,45,42,43,41)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.