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