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