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