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