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