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