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