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