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