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