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