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