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