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