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