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