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