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