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)(21,34)(22,32)(23,27)(24,30)(26,36)(29,45)(31,46)(33,43)(35,39)(37,44)(38,42)(40,48)(41,47)(1,3)(2,6)(4,11)(5,10)(7,14)(8,9)(12,15)(13,16)(17,18)(19,24)(20,32)(21,26)(22,25)(23,27)(28,30)(29,40)(31,41)(33,44)(34,36)(35,42)(37,43)(38,39)(45,48)(46,47) involution — undirected(17,19,23,31)(18,24,27,41)(20,29,22,38)(21,35,37,48)(25,39,32,40)(26,42,43,45)(28,44,46,34)(30,33,47,36)(3,10)(6,9)(11,16)(14,15)(17,20,23,22)(18,25,27,32)(19,29,31,38)(21,33,37,36)(24,39,41,40)(26,34,43,44)(28,45,46,42)(30,35,47,48)(1,4,5,13)(2,7,8,12)(3,11,10,16)(6,14,9,15)(17,20,23,22)(18,25,27,32)(19,29,31,38)(21,33,37,36)(24,39,41,40)(26,34,43,44)(28,45,46,42)(30,35,47,48)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.