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