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)(19,23)(20,32)(21,25)(22,27)(24,35)(26,34)(28,44)(29,38)(30,39)(31,40)(33,47)(36,42)(37,46)(41,45)(43,48)(1,3,5,4)(2,6,7,8)(9,11,14,12)(10,15,13,16)(17,19,22,31)(18,23,27,40)(20,33,36,28)(21,30,34,29)(24,41,43,37)(25,39,26,38)(32,47,42,44)(35,45,48,46)(1,4,5,3)(2,6,7,8)(9,10,14,13)(11,16,12,15)(17,20,34,48,22,36,21,35)(18,24,25,42,27,43,26,32)(19,28,29,45,31,33,30,46)(23,37,39,47,40,41,38,44)(9,12,14,11)(10,15,13,16)(17,21,22,34)(18,25,27,26)(19,29,31,30)(20,35,36,48)(23,38,40,39)(24,42,43,32)(28,45,33,46)(37,44,41,47)(9,13,14,10)(11,16,12,15)(17,21,22,34)(18,25,27,26)(19,30,31,29)(20,35,36,48)(23,39,40,38)(24,42,43,32)(28,46,33,45)(37,47,41,44)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.