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)(20,24)(21,26)(22,25)(27,35)(28,37)(29,36)(30,38)(31,39)(32,40)(33,42)(34,41)(43,46)(44,47)(45,48)(2,5)(6,8)(17,19,22,29)(18,23,25,36)(20,30,31,27)(21,33,34,28)(24,38,39,35)(26,42,41,37)(32,43,45,44)(40,46,48,47)(1,3)(2,6)(4,7)(5,8)(10,13)(14,16)(17,20,21,32,22,31,34,45)(18,24,26,40,25,39,41,48)(19,27,28,43,29,30,33,44)(23,35,37,46,36,38,42,47)(3,7)(6,8)(9,11,12,15)(10,14,13,16)(18,25)(23,36)(24,39)(26,41)(35,38)(37,42)(40,48)(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.