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