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