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