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