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