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