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