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