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