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)(17,18,22,26,23,28,36,27)(19,29,32,42,34,45,33,24)(20,35,21,25,37,44,39,43)(30,47,48,41,31,40,38,46)(1,3,6,2)(4,7,11,9)(5,8,13,10)(12,15,16,14)(17,19)(18,24)(20,30)(21,38)(22,33)(23,34)(25,40)(26,45)(27,29)(28,42)(31,37)(32,36)(35,46)(39,48)(41,44)(43,47)(1,4,6,11)(2,7,3,9)(5,12,13,16)(8,14,10,15)(17,20,36,39,23,37,22,21)(18,25,26,44,28,43,27,35)(19,30,32,48,34,31,33,38)(24,40,45,41,42,47,29,46)(4,11)(7,9)(12,16)(14,15)(17,21,22,37,23,39,36,20)(18,25,26,44,28,43,27,35)(19,31,32,38,34,30,33,48)(24,41,29,40,42,46,45,47)(1,5,6,13)(2,8,3,10)(4,12,11,16)(7,14,9,15)(20,37)(21,39)(25,43)(30,31)(35,44)(38,48)(40,47)(41,46)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.