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