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