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