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