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