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