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