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