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