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