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