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