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