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