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