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