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