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