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