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