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