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