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