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