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