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