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