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