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