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