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