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