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