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