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