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