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