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