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