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