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