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)(17,18,21,24)(19,25,27,22)(20,23,29,32)(26,31,28,30)(33,34,38,42)(35,39,43,48)(36,40,46,45)(37,41,47,44)(1,3,7,4)(2,8,5,9)(6,12,14,11)(10,16,13,15)(17,19)(18,22)(20,28)(21,27)(23,31)(24,25)(26,29)(30,32)(35,43)(37,47)(39,48)(41,44)(1,3,7,4)(2,9,5,8)(6,11,14,12)(10,16,13,15)(17,19,21,27)(18,22,24,25)(20,26,29,28)(23,30,32,31)(33,35)(34,39)(36,41)(37,45)(38,43)(40,47)(42,48)(44,46)(1,4,7,3)(2,9,5,8)(6,12,14,11)(10,16,13,15)(17,19)(18,22)(20,26)(21,27)(23,30)(24,25)(28,29)(31,32)(1,5,7,2)(3,9,4,8)(6,13,14,10)(11,16,12,15)(17,20)(18,23)(19,26)(21,29)(22,30)(24,32)(25,31)(27,28)(33,36)(34,40)(35,44)(37,39)(38,46)(41,43)(42,45)(47,48)(1,6,7,14)(2,10,5,13)(3,11,4,12)(8,15,9,16)(17,18)(19,22)(20,23)(21,24)(25,27)(26,30)(28,31)(29,32)(33,37)(34,41)(35,45)(36,39)(38,47)(40,43)(42,44)(46,48)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.