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