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