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