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