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