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