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)(18,23)(19,25)(26,31)(27,32)(33,34,38,37)(35,39,41,43)(36,40,44,45)(42,46,47,48)(1,3,6,11)(2,7,4,9)(5,10,13,16)(8,14,12,15)(17,18)(19,24)(20,25)(21,26)(22,23)(27,29)(28,32)(30,31)(35,41)(39,43)(42,47)(46,48)(2,4)(7,9)(8,12)(14,15)(33,35,38,41)(34,39,37,43)(36,42,44,47)(40,46,45,48)(1,4,6,2)(3,9,11,7)(5,12,13,8)(10,15,16,14)(17,19,22,25)(18,24,23,20)(21,27,30,32)(26,29,31,28)(1,3)(2,7)(4,9)(5,10)(6,11)(8,14)(12,15)(13,16)(17,20,22,24)(18,25,23,19)(21,29,30,28)(26,27,31,32)(33,36)(34,40)(35,42)(37,45)(38,44)(39,46)(41,47)(43,48)(1,5,6,13)(2,8,4,12)(3,10,11,16)(7,14,9,15)(17,21,22,30)(18,26,23,31)(19,27,25,32)(20,28,24,29)(33,37,38,34)(35,43,41,39)(36,40,44,45)(42,46,47,48)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.