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